The new Gap tool (U) works on the “white space” between frames. Position the mouse between two items, click-and-drag to adjust the position of the gap, and the frames on either side of the gap will adjust at the same time-the uniform gap width will be maintained! Hold down the Shift key to only adjust …
Instead of creating complex artwork and then drawing another object on top to mask that artwork, you can now simply click on any object and change the drawing mode to Draw Inside (Shift-D) at the bottom of the Toolbox. After you’ve set Draw Inside, the selected object will mask everything you draw. Draw Inside also …
Photoshop CS5 has an incredibly powerful new feature called Merge to HDR Pro, accessible from File>Automate. Quick results, intuitive controls, and magical de-ghosting. For best results, bracket three to five exposures when shooting; stabilize; and use Av (Aperture Priority) or Manual mode to fix aperture.